An optical communication device and wavelength selection method

Abstract

This application discloses an optical communication device. The optical communication device can be a reconfigurable optical add-drop multiplexer. In this application, the optical deflection component can be incident on the first input component and dispersed by the first wavelength dispersion component. The subsequent multiple first sub-wavelength beams are angularly deflected to obtain multiple second sub-wavelength beams, and the multiple second sub-wavelength beams are transmitted to the second optical switch array, synthesized by the third wavelength dispersion component, and passed through the first output Component dimension output, the optical deflection component can also angle-deflect multiple first sub-wavelength beams to obtain multiple third sub-wavelength beams, which are synthesized by the second wavelength dispersion component and incident to the third optical switch array, through the second output The sub-wavelength output of the component, wherein the beam propagation directions of the second sub-wavelength beam and the third sub-wavelength beam are different. The present application can reduce the insertion loss caused by the first-level optical switch array for the downwave signal.

Description

technical field [0001] The present application relates to the field of communications, and in particular, to an optical communication device and wavelength selection method. Background technique [0002] With the rapid growth of video and cloud services, operators are particularly concerned about the flexibility of optical network construction, and the reduction of optical network construction and operation and maintenance costs. There are more and more directional dimensions (or transmission paths) that network nodes need to cross-connect, and operators can remotely and automatically perform dimension switching by using a reconfigurable optical add-drop multiplexer (ROADM). , to replace the previous way of manually dropping the site to replace the optical fiber connection, so as to meet the requirements of dynamic network connection. [0003] With the rapid development of ROADM technology, the ROADM (abbreviated as CDC ROADM) with colorless (wavelength independent) charact...

AI Technical Summary

Problems solved by technology

Since the uplink and downlink signals need to pass through a three-level optical switching array, the signal has a large insertion loss and filtering

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